Principal English Translation:
a label given to brave but wicked warriors who were furious in battle and who "only came paying the tribute of death" -- also called Otomí and tlaotonxinti
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 6 -- Rhetoric and Moral Philosophy, No. 14, Part 7, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1961), 110.
Attestations from sources in Spanish:
auh nohuiya[n] n[roro] chimalicuiloloc yva[n] quaquachicti miyeq'[ui]ntin nezque auh in Tepeyacac unpa motecato in xochipilteca [Tachado: y oncan quina] Tepeyacac = Y en todas partes se pintaron los escudos y aparecieron muchos quaquachicti y en Tepeyacac se fueron a colocar los xochipilteca. (ca. 1582, México)
Luis Reyes García, ¿Como te confundes? ¿Acaso no somos conquistados? Anales de Juan Bautista (México: Centro de Investigaciones y Estudios Superiores en Antropología Social, Biblioteca Lorenzo Boturini Insigne y Nacional Basílica de Guadalupe, 2001), 152–153.